
A pregnant mother needs vitamin B2 or riboflavin to ensure her baby grows properly. Riboflavin has an effect on your thyroid gland and supports healthy eyes, skin, hair, and nails. A deficiency in riboflavin can cause thinning hair, flaking nails and poor eyesight.
To ensure you receive your daily recommended allowance of riboflavin, you should eat a balanced diet containing riboflavin-rich food like poultry, fish, mushrooms, cereals, dairy products, and eggs.
A tip for storing food, though: keep it in opaque and air-tight containers since light can easily destroy riboflavin.